<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        .box{
            width: 300px;
            height: 300px;
            background: red;
        }
    </style>
</head>
<body>
    <div class="box">
       <a href="#" class="box1">hh</a>
       <ul>
           <li>1</li>
           <li>2</li>
           <li>3</li>
           <li>4</li>
       </ul>
    </div>
    
</body>
</html>